
Glossary
61203086L1-1
ISU 512e User Manual
Glossary-7
multipoint circuit
A circuit consisting of three or more stations connected directly
electrically.
netmask
A 32-bit bit mask which shows how an Internet address is to be di-
vided into network, subnet, and host parts. The netmask has ones
in the bit positions in the 32-bit address which are to be used for
the network and subnet parts, and zeros for the host part. The
mask should contain at least the standard network portion (as de-
termined by the address's class), and the subnet field should be
contiguous with the network portion.
non-ISDN line
Any connection from a CPE to a SPCS that is not served by D-
Channel signaling.
non-ISDN trunk
Any trunk not served by either SS7 or D-Channel signaling.
NT1
Network termination 1. A unit that provides physical and electro-
magnetic termination of the U-interface 2-wire transmission line,
converts between Layer 1 formats used at the U- and T- reference
points, and performs some maintenance functions.
packet mode
Refers to switching of packets of information for different users by
statistically multiplexing them over the same transmission facili-
ties. ISDN packet mode capabilities are based on CCITT recom-
mendation X.25 procedures.
point-to-point
Describing a circuit connecting two points directly with no inter-
mediate processing nodes or computers (although switching facil-
ities could exists). A type of connection that links two logical
entities (i.e., phone-line circuit).
point-to-point protocol (PPP)
An implementation of TCP/IP which is intended for transmission
using telephone lines. PPP provides router-to-router and host-to-
network connections over both synchronous and asynchronous
circuits.
RIP
Routing Information Protocol. A protocol used to exchange rout-
ing information among a set of computers connected by a LAN.
RIP uses hop counts as a routing metric.
Содержание 1203086L1
Страница 1: ...ISU 512e ISDN Service Unit Part Number 1203086L1 Document Number 61203086L1 1A September 1999 ...
Страница 18: ...xviii ISU 512e User Manual 61203086L1 1 List of Figures ...
Страница 20: ...xx ISU 512e User Manual 61203086L1 1 List of Tables ...
Страница 24: ...Quick Start Guide Quick Start 4 ISU 512e User Manual 61203086L1 1 ...
Страница 34: ...Chapter 2 Installation 2 6 ISU 512e User Manual 61203086L1 1 ...
Страница 46: ...Chapter 3 Operation 3 12 ISU 512e User Manual 61203086L1 1 ...
Страница 54: ...Chapter 4 Status Menu 4 8 ISU 512e User Manual 61203086L1 1 ...
Страница 58: ...Chapter 5 Test Menu 5 4 ISU 512e User Manual 61203086L1 1 ...
Страница 96: ...Chapter 6 Configuration Menu 6 38 ISU 512e User Manual 61203086L1 1 ...
Страница 100: ...Chapter 7 Dial Menu 7 4 ISU 512e User Manual 61203086L1 1 ...
Страница 130: ...Appendix C Loop Status Messages C 4 ISU 512e User Manual 61203086L1 1 ...
Страница 140: ...Appendix E SNMP E 4 ISU 512e User Manual 61203086L1 1 ...
Страница 162: ......